Metal-cutting machine



Sheet 1.

2 Sheets-- (No Model.)

E. SAMUEL.

METAL CUTTING MAUHINE.

Patented Dec. 9, 1884.

(No Model.) 2 Sheets-Sheet 2. E. SAMUEL.

METAL CUTTING MACHINE.

Patented Dec. 9, 188-4.

NI'lllED Era-rte AIFT tribe.

EDXVARD SAMUEL, OF PHILADELPHIA, PENNSYLVANIA.

METAL-CUTTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 309,101, dated December 9, 1884.

Application filed April 18, 1884. (N0 model.)

To aZZ whom it may concern.-

Be it known that I, EDWARD SAMUEL, a citizen of the United States, and a resident of Philadelphia, Pennsylvania, have invented certain Improvements in Machines for Cutting Metal Plates, of which the following is a specification.

My invention relates to that class of metalcutting machines in which a rapidly-revolving disk or toothless saw-blade, of iron or steel, is caused to sever strips from plates or bars, the nature of my improvements and the objects to be attained thereby being too fully described hereinafter to need preliminary explanation.

In the accompanying drawings, Figure 1, Sheet 1, is a vertical section of a plateeutting machine on the line 1 2, Fig. 4; Fig. 2, a section on the line 3 4, Fig. 4.; Fig. 3, a section of part of the machine on the line 5 6, Fig.2; Fig. at, Sheet 2, a plan view, and Fig. 5 a perspective view, of part of the machine.

To guides on a bed, A, supported by suitable legs, a a, is adapted the plate-carrying bed B, which can be traversed to and fro on the bed by a screw-shaft, or by a rack and pinion in connection with suitable reversing-gearing, which may be similar to that used in connection with metal planing machines, and has therefore not been shown in the drawings. Two or more substantial arms, D, are pivoted to extensions (1 of the table B, each arm being provided at its outer end with one or more clamping-screws, e. A spindle, E, carrying the disk or saw f, and provided with a pulley, z, for a driving-belt, has its bearings h h on a plate, F, between which and the part is of a stand, K, are interposed two wedges, m m,

adapted to grooves in the said plate F and in the stand, the two wedges being connected to a cross-bar, a, and forming with the latterthe adjustingframe M. (Shown in Fig. 5.) The threaded portion of a screwspindle, 1), passes through the cross-bar n of this frame, the spindle having its bearing in the stand K, to which it is confined longitudinally, so that after loosening the bolts or screws by which the plate F is secured to the stand the said plate,witl1 the spindle and saw, can be raised or lowered by turning the screw-spindle, the plate being of course secured after adjustment.

To the stand K is secured a bed, N ,which is preferably similar in construction to an ordi nary lathe-bed, and is supported at its outer end by a leg, q, and to guides on this bed Nis adapted a table, P, to which a keeper, t, is adjustably attached, and which can be secured to the bed N in any desired position by bolts or other suitable fastenings. The upper sur face of the table P is on the same level as, or very slightly below, the upper surface of the table B.

Prior to using the machine the plate]? is so adjusted in height that a portion of the sawblade will extend above the upper surface of the table far enough to cut through the plate secured thereto and if the strip to be cut from a plate is narrow the table P is so adj usted on its bed that its edge a shall be near the saw-blade without being in contact there with, the edge u of the table B being also as near as possible to the saw-blade. The plate to be cut is placed on the said table B, and so adjusted that the edge to be cut will project over the table P and beneath the keeper t, after which the plate is clamped to the table by the screws 0 of the pivoted arms D. The table B is now traversed in the direction of the arrow, Fig. 2, while the saw-blade is rapidly revolved in the direction of its arrow, the result being the severing of a narrow strip from the edge of the plate, the said strip being prevented by the keeper from curling up and being confined between the table P and keeper as the cutting proceeds.

It is important, in orderto insure the steadiness of the plate while it is being severed by the saw, that a portion of it should overhang the table P, not bearing thereon, however, with sufficient force to create a friction,wl1ich would interfere with the free traversing of the table B. In some instances a wide strip has to be cut from a plate, in which case the keeper it must be adjusted on the table P so as to accommodate the strip, which, however, will always be overlapped by a portion of the keeper. To permit this adjustment of the keeper, the T- heads of the bolts by which it is secured to the table P are contained in an undercut groove, 1 inthe said table.

I prefer to use an emery-wheel, G, in connection with the machine, for the purpose of removing from the severed plate the ragged boring shaft.

fin left by the saw. The spindle of this emery-wheel is carried by a bracket, H, secured to the bed A, and is provided with a pulley for receiving a'belt from a pulley on a neigh- After the plate has been cut and trimmed, the clamping-screws c are loosened and the arms I) swung round away from the table, when the plate is at liberty to be removed. The combination of these pivoted arms with the traversing table is an important feature of my invention, owing to the facilities which they afford of readily clamping the plates and as readilyreleasing them. The

' pin of each arm D has its bearing partly in an extension, d, of the table B and partly in a removable cap, (1, and the pin has an enlargement, which prevents the raising of the arm. If desired, the pin may be furnished with a roller, 12, for bearing against a bracket, s, on the bed A. A can, 7, for containing water or any available solution,is attached to the keeper, and is provided with a spout from which the liquid may drop onto the edge of the saw-blade. WVhen it becomes necessary to gain access to the saw-blade and its spindle, they may be exposed by moving the table I along its bed. It is advisable that no more of the saw should project above the top of the table than is absolutely necessary to cut through the plate,in order that undue friction of the saw on the metal which it cuts may be prevented, hence the adjustability of the plate which carriesthe saw-spindle.

I claim as my invention 1. The combination of the bed A, traversing table 13, and devices for clamping aplate thereto, with the saw fand its spindle E, having bearings'below the said table, and adjustable in height, substantially as described.

2. The combination of the bed A, table B, saw-spindle and saw, with the table P, and keeper t,adjustably secured to the said table, substantially as described.

3. The combination of the stand K, plate F, and saw-spindle and saw carried by the plate, with the adjusting-frame M, composed of two connected wedges, and'with mechanism for operating the said frame, substantially as specified.

4. The combination of the bed A and its table 13, with arms D, pivoted to the table, each arm being provided with a clampingscrew, substantially as set forth.

5. The combination of the bed A, table B,

saw-spindle and saw, with the wheel G and its spindle having bearings on the said bed, or on an attachment thereto, substantially as specified.

In testimony whereofl have signed my name to this specification-in the presence of two sub scribing witnesses.

EDXVD. SAMUEL.

XVitnesses:

VVILLIAM SELFRIDGE, HARRY SMITH. 

